272 citations · 600 across the 15 of their papers we have counts for
10 papers · 1 filter
Pairing gaps near ferromagnetic quantum critical points
Matthias Einenkel, Hendrik Meier, Catherine Pépin +1
We address the quantum-critical behavior of a two-dimensional itinerant ferromagnetic systems described by a spin-fermion model in which fermions interact with close to critical bo…
Probing the fractional quantum Hall edge by momentum-resolved tunneling
Hendrik Meier, Yuval Gefen, Leonid I. Glazman
The nature of the fractional quantum Hall state with filling factor and its edge modes continues to remain an open problem in low-dimensional condensed matter physics. Here…
Cascade of phase transitions in the vicinity of a quantum critical point
H. Meier, C. Pépin, M. Einenkel +1
We study the timely issue of charge order checkerboard patterns observed in a variety of cuprate superconductors. We suggest a minimal model in which strong quantum fluctuations in…
Effect of magnetic field on competition between superconductivity and charge order below the pseudogap state
H. Meier, M. Einenkel, C. Pépin +1
We theoretically investigate the T-B phase diagram of cuprates building on the SU(2) pseudogap order recently obtained from the spin-fermion model. At low temperatures, our analysi…
Pseudogap state from quantum criticality
K. B. Efetov, H. Meier, C. Pépin
Upon application of an external tuning parameter, a magnetic state can be driven to a normal metal state at zero temperature. This phenomenon is known as quantum criticality and le…
A resistor model for quantum criticality: quasi one-dimensional organic conductors
H. Meier, P. Auban-Senzier, C. Pépin +1
We investigate the metallic transport in the organic superconductor (TMTSF)2PF6 under pressure within the framework of the spin density wave theory in the proximity of a Peierls qu…
Low energy excitations and singular contributions in the thermodynamics of clean Fermi liquids
H. Meier, C. Pépin, K. B. Efetov
Using a recently suggested method of bosonization in an arbitrary dimension, we study the anomalous contribution of the low energy spin and charge excitations to thermodynamic quan…
Reply to the Comment by Galanakis \textit{et al} on the paper \textquotedblleft Exact bosonization for an interacting Fermi gas in arbitrary dimensions"
K. B. Efetov, C. Pépin, H. Meier
It is shown that the criticism presented in the Comment by Galanakis et al \cite{1} on the paper by Efetov et al \cite{2} is irrelevant to the bosonization approach.
Describing systems of interacting fermions by boson models: exact mapping in arbitrary dimension and applications
K. B. Efetov, C. Pépin, H. Meier
We develop a new method that allows us to map models of interacting fermions onto bosonic models describing collective excitations in an arbitrary dimension. This mapping becomes e…
Exact bosonization for an interacting Fermi gas in arbitrary dimensions
K. B. Efetov, C. Pepin, H. Meier
We present an exact mapping of models of interacting fermions onto boson models. The bosons correspond to collective excitations in the initial fermionic models. This bosonization…